function init_data(){	
    var xmlHttp = new XMLHttpRequest();
    if (xmlHttp) {
        xmlHttp.onreadystatechange = function() {
            if (xmlHttp.readyState == 4 && (xmlHttp.status == 200 || xmlHttp.status == 304)) {
                //alert(xmlHttp.responseText);
                var s = xmlHttp.responseText;
                document.getElementById("img_value").src = "img/city/level_pic"+s+".gif";
            }
        };
    xmlHttp.open('GET', '../refresh_player_data.php');
    xmlHttp.send(null);
    }
	return true;
}